81484312

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 204019200

約数和(自身を除く): 122534888

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 43, 52, 56, 76, 86, 91, 104, 133, 137, 152, 172, 182, 247, 266, 274, 301, 344, 364, 494, 532, 548, 559, 602, 728, 817, 959, 988, 1064, 1096, 1118, 1204, 1634, 1729, 1781, 1918, 1976, 2236, 2408, 2603, 3268, 3458, 3562, 3836, 3913, 4472, 5206, 5719, 5891, 6536, 6916, 7124, 7672, 7826, 10412, 10621, 11438, 11782, 12467, 13832, 14248, 15652, 18221, 20824, 21242, 22876, 23564, 24934, 31304, 33839, 36442, 41237, 42484, 45752, 47128, 49868, 67678, 72884, 74347, 76583, 82474, 84968, 99736, 111929, 135356, 145768, 148694, 153166, 164948, 223858, 236873, 270712, 297388, 306332, 329896, 447716, 473746, 536081, 594776, 612664, 783503, 895432, 947492, 1072162, 1455077, 1567006, 1894984, 2144324, 2910154, 3134012, 4288648, 5820308, 6268024, 10185539, 11640616, 20371078, 40742156, 81484312]

約数ペア:

[(1, 81484312), (2, 40742156), (4, 20371078), (7, 11640616), (8, 10185539), (13, 6268024), (14, 5820308), (19, 4288648), (26, 3134012), (28, 2910154), (38, 2144324), (43, 1894984), (52, 1567006), (56, 1455077), (76, 1072162), (86, 947492), (91, 895432), (104, 783503), (133, 612664), (137, 594776), (152, 536081), (172, 473746), (182, 447716), (247, 329896), (266, 306332), (274, 297388), (301, 270712), (344, 236873), (364, 223858), (494, 164948), (532, 153166), (548, 148694), (559, 145768), (602, 135356), (728, 111929), (817, 99736), (959, 84968), (988, 82474), (1064, 76583), (1096, 74347), (1118, 72884), (1204, 67678), (1634, 49868), (1729, 47128), (1781, 45752), (1918, 42484), (1976, 41237), (2236, 36442), (2408, 33839), (2603, 31304), (3268, 24934), (3458, 23564), (3562, 22876), (3836, 21242), (3913, 20824), (4472, 18221), (5206, 15652), (5719, 14248), (5891, 13832), (6536, 12467), (6916, 11782), (7124, 11438), (7672, 10621), (7826, 10412)]